/* Microsoft Reference Implementation for TPM 2.0
 *
 *  The copyright in this software is being made available under the BSD License,
 *  included below. This software may be subject to other third party and
 *  contributor rights, including patent rights, and no such rights are granted
 *  under this license.
 *
 *  Copyright (c) Microsoft Corporation
 *
 *  All rights reserved.
 *
 *  BSD License
 *
 *  Redistribution and use in source and binary forms, with or without modification,
 *  are permitted provided that the following conditions are met:
 *
 *  Redistributions of source code must retain the above copyright notice, this list
 *  of conditions and the following disclaimer.
 *
 *  Redistributions in binary form must reproduce the above copyright notice, this
 *  list of conditions and the following disclaimer in the documentation and/or
 *  other materials provided with the distribution.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ""AS IS""
 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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 *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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 */
#include "Tpm.h"
#include "PolicyRestart_fp.h"

#if CC_PolicyRestart  // Conditional expansion of this file

/*(See part 3 specification)
// Restore a policy session to its initial state
*/
/*
This command allows a policy authorization session to be returned to its initial state. This command is
used after the TPM returns TPM_RC_PCR_CHANGED. That response code indicates that a policy will
fail because the PCR have changed after TPM2_PolicyPCR() was executed. Restarting the session
allows the authorizations to be replayed because the session restarts with the same nonceTPM. If the
PCR are valid for the policy, the policy may then succeed.

重置策略会话状态到初始值。
*/
TPM_RC
TPM2_PolicyRestart(
    PolicyRestart_In    *in             // IN: input parameter list
    )
{
    // Initialize policy session data
    SessionResetPolicyData(SessionGet(in->sessionHandle));

    return TPM_RC_SUCCESS;
}

#endif // CC_PolicyRestart